<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear='getGoodsList'>
            <el-button slot="append" icon="el-icon-search"
            @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type='primary' @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- table表格区 -->
      <el-table :data='goodsList' border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">{{scope.row.add_time | dateFormat}}</template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>        
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background>
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询参数对象
      queryInfo:{
        query:'',
        pagenum:1,
        pagesize:10
      },
      // 商品列表
      goodsList:[],
      // 总数据条数
      total:0
    }
  },
  created(){
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取对应的商品列表
    async getGoodsList(){
      const {data:res}= await this.$http.get('goods',{params:this.queryInfo})
      if(res.meta.status !== 200){return this.$message.error('查询失败')}
      this.$message.success('查询成功')
      console.log(res.data);
      this.goodsList=res.data.goods
      this.total=res.data.total
    },
    // 分页发生变化触发函数
    handleSizeChange(newSize){
      this.queryInfo.pagesize=newSize
      this.getGoodsList()
    },
    // 页码值发生变化,接受最新页码值
    handleCurrentChange(newPage){
      this.queryInfo.pagenum=newPage
      this.getGoodsList()
    },
    // 删除指定id商品
    async removeById(id){
       const confirmResult= await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>err)
        if(confirmResult !== 'confirm'){return this.$message.info('已取消删除')}
        const {data:res}= await this.$http.delete(`goods/${id}`)
        if(res.meta.status !==200) this.$message.error('删除失败')
        this.$message.success('删除成功')
        this.getGoodsList()
    },
    // -添加商品
    goAddpage(){
      this.$router.push('/goods/add')
    }
  },
}
</script>

<style lang='less' scoped>

</style>